Side bearing for railway-cars



\ E. POSSON.

. SIDE BEARING FOR RAILWAY CARS.

t m 5. mm W Y APPLICATION FILED .IMLZO, I919- E. POSSON.

SIDE BEARING FOR RAILWAY CARS.

APPLICATION FILED JAN-20. 1919.

Patented se ta, 192'1.

4 SHEETS-SHEET 2- E. POSSO-N.

SIDE BEARING FOR RAILWAY CARS. APPLICATION FILED JAN. 20, 1919. 7

1,389,698. PatentedSept. 6,1921.

I 4 SHEETS-SHEET 3. 4

' 77/67Zf07'1' #577655, mflardfossozd E. POSSON.

SIDE BEARING FOR RAILWAY CARS.

APPLICATION FILED JAN-20. 1918.

" Patentedsept- 6, .1921.

4 SHEETS-SHEET 4.

side-bearing I Fig. 2 shows a the movable pinions for the roller;

" Fig. 3 shows a top plan view of the invention, a portion thereof being illustrated PATENT OFFICE.

EDWARD POSSON, OF CHICAGO, ILLINOIS.

SIDE BEARING FOR RAILWAY-CARS.

Specification of Letters Patent. Patented Sept, 6, 1921.

Application filed January 20, 1919. Serial No. 272,218.

To all whom it may concern Be it known that I,'ED\V ARD PossoN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and usefullmprovements in Side Bearings for Railway-Cars, of which the following is a specification. V

"The purpose of this invention is to provide an improved side-bearing adapted to be mounted on the, truck of a railway car to cooperate with a part carried by the body transom or bolster. The principal object of the inventionis to provide an improved self-centering side bearing in which a roll ing body is automatically returned to its 'initial position after movement thereof. A further object is to provide a rolling body,

the movement of which is controlled by resiliently mounted trunnions connected thereto Still another object of the invention is to provide improved means for mounting and actuating the movable members by which the rolling body is returned to its initial position. Other objects relate to various features of construction and arrangement which will be pointed out more fully hereinafter.

The nature of the invention will be un derstood from the following specification,' 'taken with the accompanying drawlngs, 1n

which certain embodiments are illustrated.

, In the drawings Figure 1 shows aside elevation of the perspective View of one of in horizontal section on the line 33 of Figsl;

Fig. 4 shows a transverse section on the line 4-4 of Fig. 3;

Fig. 5 shows an end elevation of the sidebearing; and Y Fig. 6 shows a view similar to Fig. 3, illustrating a modified form of the invention.

1 "The invention comprises a housing or casing 10 having a base plate 11 provided with apertures 12 by which the housing is secured to a'suitable part of the car truck. Side walls 13 extend upwardly from the base plate 11 and are united at their ends by the transverse walls orflanges 14. A slot 13 is provided in the end (see Fig; 5.) immediately above the base plate 11, and this slot is adapted to permit theinsertion and withdrawal of a wear plate orraceway 16 upon which one or more cylindrical rollers 17 are adapted to travel. The plate 16 abuts against shoulders on the casing at one end thereof and a key 16 is adapted to extend through apertures 15 in the side walls 13 at the other end of the plate. The ends of this key are bent transversely, as shown, and they thus prevent withdrawal of the wear plate 16 from the housing. The roller 17 is adapted to be engaged by a plate carried by the car body when the truck swings about its pivot, and this engagement causes the roller 17 to travel within the housing 10 upon the plate 16. a

The roller 17 is hollow and is provided at opposite ends with apertures 18 adapted to receive the lugs or pinions 19 formed on the supporting members 20 which are semicircular in cross-section, as shown in Figs. 2 and4. The end walls 20 of the members 20 are provided with arcuate recesses 21 adapted to form seats for the guide-rods 22 which are mounted in apertures extending through the bosses 23 which are formed integrally with the side walls 13 of the casing 10 adjacent the ends thereof. Coiled springs 24 are mounted on the guide rods 22 between the end walls 21 of the members 20,

which are adapted to enter the chambers 25 formed inthe bosses 23 uponlongitudinal movement of the supporting members 20 with respect to the housing. The side walls 13 are provided with longitudinal slots 26 which receive the pinions 19 and permit longitudinal movement thereof when the roller 17 travels upon the plate 16. It will be apparent that upon movement of each supporting member 20 in either direction, the adjacent coiled spring 24 will be engaged at one end thereof by one of the end walls 21, and the opposite end of the spring will abut against the outer flange 23 of the boss 23, so that the spring will be compressed and resist the movement of the roller 17. The spring 24 is preferably of such length that it fits between the bosses 23 and also between the end walls 21 of the member 20, so that movement of the roller in either direction will cause an immediate resistance to be set up by the spring 24. Since the members 20 and the pinions 19 at opposite sides of the housing are mounted independently of each other, it will be apparent that one side of the roller is permitted to travel independently of the other side of the roller which is an advantage, since it permits the side bearing to accommodate itself to the relative pivotal movement of the car truck and the 'car' body. To permit this movement of the roller 17, the ends thereof are preferably somewhat tapered, as shown at 17. The sidewalls 13 of the housing are provided on their inner sides and at opposite ends thereof with integral lugs 27 which are adapted to engage and limit the longitudinal movement of the roller 17. In Fig. 6 of the drawings, I'have showna modified form of the invention in which the housing 30 is provided with side lugs 31 adapted to support the guide pins 32 upon which the coiled springs'33 are mounted. Thelongitudinal slots 34 in the side walls of the housing are of greater length than in the embodiment previously described, and are adapted to permit longitudinal travel of two inwardly extending pinions 35 formed on each of the traveling supporting members 36, which are similar to the members 20, previously described, being provided with end walls to engage opposite ends of the springs 33] These pinions 35 engage apertures in the ends of the rollers 37 which travel on th wear plate 38. This construction permits the use of a plurality of rollers instead of a single roller shown in the first embodiment of the invention. WVith this form of apparatus, as well as in'the form first described, the movable bearing deviceis automatically self-centered and returns to its normal position after being actuated.

Although I have shown and described certain embodiments of the invention for purposes of illustration, it will be understood that it may be constructed in other forms without departing from the scope of the appended claims.

lVhat I claim'is:

1. The combination in a side bearing for railway cars,'of a casing having a channel in its upper side, a rolling body adapted to travel in said channel, the walls of said .channel having longitudinal slots therethrough, pinions extending through said slots and engaging saidrolling body, suptudinal movement with respect to said casing, and a spring confined by parts of said casing and adapted to be compressed upon movement ofsaid supporting member in either direction.

3. The combination in a side bearing for railway cars, of'a casing, a rolling body adapted to travel in said casing, a movable member having pivotal engagement with said rolling body, a compressible spring, means carried by said Casing to prevent movement of said. spring, and means actuated by said movable memberfor cooperating with said last-named means to compress said spring upon movement. offsaid rollin r body in either direction.

4:. he combination in a side-bearing for railway cars, of a casing, a rolling body adapted to travel in said casing, a guide rod, a movable member connected to said rolling body and mounted to travel parallel to said guide rod, a coiled spring mounted on said guide rod, means carriedby said movable member to engage opposite ends of said spring, and means carried by said casing to engage opposite ends of said spring independently. of said last-named means. 7

'5. The combination in a side bearin 'for railway cars,'of a casing, ,a rolling body adapted to travel in said casing, a guide rod mounted parallel to the path of travel of said rolling body, a coiled spring mounted on said guide rod, shoulders carried by said casing to engage opposite ends of said spring, a movable member connected to said rolling body and adaptedto travellparallel to said rod beyond said shoulders, and means carried by said movable member to engage opposite ends of said spring. j

6. The combination in a side bearing for railway cars, of a casing, av rolling body adapted to travel in said casing, lugs mounted on said casing, a guide-rod supported by said lugs, a spring mounted on said guide rod and adapted to engage said lugs at its ends, a movable member adapted to engage ends of said spring opposite said-lugs, and a pinion carried by said movable member and engaging saidrolling body, said casing having chambers opposite said lugs to receive said movable, member, vwhereby said movable member may enter said chambers and compress said spring upon travel of said rolling body in either direction.

7. The combination in a side-bearing. for railway cars of a casing having a channel in its upper surface, a rolling body adapted to travel in said channel, said rolling body hav ing apertures in the ends thereof, pinions having pivotal engagement with said rolling body within said apertures, and means for permitting movement ofrsaid pinions and for returningthe same to normal. position after said rolling body is released. 7

8. Tlie'combination in ,a side bearing for railway cars of a casing, a,rolling-body adapted to travel in said casing, a movable movement of said member in either direction member pivotally engaging said rolling is adapted to effect the compression of said body, a coiled spring, said movable member spring. 10 havmg parts engaging the opposite ends of In testimony whereof, I have subscribed 5 said coiled sprlng, and stationary means my name.

engaging the ends of said spring independently of said movable member, whereby the EDWARD POSSON. 

